Us Weekly reports Valentine performed a solo with an acoustic guitar, while Carmichael was the best man. Stevie Nicks also performed at the glitzy affair.

Levine’s longtime pal Jonah Hill officiated the ceremony. A source said Hill brought many laughs to the ceremony. “Adam knew that he was putting himself [in] good hands by having Jonah officiate,” said a insider. “He and Behati set out to make this the most fun wedding that anybody had ever experienced and they truly did just that.”